[PATCH v4 10/14] memory: tegra30-emc: Use devm_tegra_core_dev_init_opp_table()

From: Dmitry Osipenko <digetx@gmail.com>
To: "Thierry Reding" <thierry.reding@gmail.com>,
	"Jonathan Hunter" <jonathanh@nvidia.com>,
	"Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
	"Nikola Milosavljević" <mnidza@outlook.com>,
	"Ulf Hansson" <ulf.hansson@linaro.org>,
	"Peter Geis" <pgwipeout@gmail.com>,
	"Nicolas Chauvet" <kwizart@gmail.com>,
	"Viresh Kumar" <vireshk@kernel.org>,
	"Stephen Boyd" <sboyd@kernel.org>,
	"Matt Merhar" <mattmerhar@protonmail.com>,
	"Paul Fertser" <fercerpav@gmail.com>,
	"Mark Brown" <broonie@kernel.org>,
	"Liam Girdwood" <lgirdwood@gmail.com>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski@canonical.com>,
	"Mikko Perttunen" <mperttunen@nvidia.com>
Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
	devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
	Nathan Chancellor <nathan@kernel.org>,
	linux-clk@vger.kernel.org
Subject: [PATCH v4 10/14] memory: tegra30-emc: Use devm_tegra_core_dev_init_opp_table()
Date: Fri, 28 May 2021 00:43:13 +0300	[thread overview]
Message-ID: <20210527214317.31014-11-digetx@gmail.com> (raw)
In-Reply-To: <20210527214317.31014-1-digetx@gmail.com>

Use common devm_tegra_core_dev_init_opp_table() helper for the OPP table
initialization.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/memory/tegra/tegra30-emc.c | 48 +++---------------------------
 1 file changed, 4 insertions(+), 44 deletions(-)

diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c
index a2f2738ccb94..63e1983f8a0d 100644
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@ -1480,49 +1480,6 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc)
 	return err;
 }
 
-static int tegra_emc_opp_table_init(struct tegra_emc *emc)
-{
-	u32 hw_version = BIT(tegra_sku_info.soc_speedo_id);
-	struct opp_table *hw_opp_table;
-	int err;
-
-	hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
-	err = PTR_ERR_OR_ZERO(hw_opp_table);
-	if (err) {
-		dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err);
-		return err;
-	}
-
-	err = dev_pm_opp_of_add_table(emc->dev);
-	if (err) {
-		if (err == -ENODEV)
-			dev_err(emc->dev, "OPP table not found, please update your device tree\n");
-		else
-			dev_err(emc->dev, "failed to add OPP table: %d\n", err);
-
-		goto put_hw_table;
-	}
-
-	dev_info_once(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n",
-		      hw_version, clk_get_rate(emc->clk) / 1000000);
-
-	/* first dummy rate-set initializes voltage state */
-	err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk));
-	if (err) {
-		dev_err(emc->dev, "failed to initialize OPP clock: %d\n", err);
-		goto remove_table;
-	}
-
-	return 0;
-
-remove_table:
-	dev_pm_opp_of_remove_table(emc->dev);
-put_hw_table:
-	dev_pm_opp_put_supported_hw(hw_opp_table);
-
-	return err;
-}
-
 static void devm_tegra_emc_unset_callback(void *data)
 {
 	tegra20_clk_set_emc_round_callback(NULL, NULL);
@@ -1568,6 +1525,7 @@ static int tegra_emc_init_clk(struct tegra_emc *emc)
 
 static int tegra_emc_probe(struct platform_device *pdev)
 {
+	struct tegra_core_opp_params opp_params = {};
 	struct device_node *np;
 	struct tegra_emc *emc;
 	int err;
@@ -1617,7 +1575,9 @@ static int tegra_emc_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
-	err = tegra_emc_opp_table_init(emc);
+	opp_params.init_state = true;
+
+	err = devm_tegra_core_dev_init_opp_table(&pdev->dev, &opp_params);
 	if (err)
 		return err;
 
-- 
2.30.2

